What spurred American trade with northern Mexico? (1 point) Responses the belief in Manifest Destiny the belief in Manifest Destiny the revolution that established Mexico as an independent republic the revolution that established Mexico as an independent republic the spread of American traders up the Missouri River and into the Rockies the spread of American traders up the Missouri River and into the Rockies the establishment of missions in California

the spread of American traders up the Missouri River and into the Rockies